Mechanical calendar



Jan. 6.- 1925.

w. H; BAKER MECHANICAL CALENDAR Sheets-Sheet l Filed March 51, 1924 Jan. 6.1925. 1,521,924

W. H. BAKER MECHANICAL CALENDAR Fled March 31, 1924 2 Sheets-Sheet 2 Patented dan. 6, 1925.

WiLLIAivr "BAKER, or NEWTON, KANSAS.-

MECHANICAL CALENDAR.

Application yiledll/Iaroh' 31, 1924. Serial `No." 703,293.

' To u'ZZ whom t may concern.'

Be it known that I, WILLIAM H. BAKER, a citizen of the' United States,l residino'at' Newton, in the Vcounty of Harvey and dotate of Kansas, have invented certain new and useful Improvements in'Mechanical Calendars; and I do declare the' following to be av full., clear, a-nd exactfdescription otv the invention, such as will enable others skilled inthe art to which it ap'pertainsY to makeand-'use the same. i

My invention aims to provide a rather simple, yet a -very desirable calendar which maybe quickly andeasily adjusted for use in any month in-V afnumber of years.

In carrying out the above "end, a pair of rotatable disks are mounted between afface plate and a. back plate, and anotherobject isto provide novel-'means foreasily adjustingthese disks.

lVith theforegoing in view, the'invention resides in the vnovellsubject matter hereinafter described and claimed, the-description being 'supplemented' by the accompanying drawings.

Figure 1 is a front'elevatio-n. Y

Figure 2 is a vertical `sectional viewon line 2 2 of Fig. 1. Y

Figure 3V is a horizontal section on Aline 31-3 of Fig. 1.

'Figure-4L isa. horizontalrsectional--view 0n line e-t of Fig. 1.

Figures 5 and 6 areelevations"of-the two rotatable disks.

Figures? and 8 are detail sections as indicated by lines /7-*7 and 8-8 of Fig. 1.

In the drawings-above briefly described, the numeral 1 designates asuitable face plate having a relativelyv large opening2, with the namesfof the seven week days along the upper edge of such opening. Atanother suit-V able point, theface plate 1 is formed with a smaller opening', and the plate may well be turned inwardly as indicated at 4, `at

opposite Vedges of this opening.

Behind Vthe't'ace plate 1,'is a'movable eX- hibitor 5, lwhich is preferablyin the form of a rotatable-disk. This exhibitor is divided, Vfor instance, bythe linesyinto four zones 7, 8, '9 'and 10, all displaying: month' day numbers The Zone 7 is devotedentire 1y to thirty day months; zone 8 is devoted to thirtylone day months; zone 9 to theV month of February when the. latter has twentyeight days; and zone 10 to February 'in 'leap years, having twenty-nine days.`

Each of the Zones 7, 8, 9 and 10 displays thirteen columns of month day numbers as indicated at 11, and any seven of these columns may be displayed yin the opening 2,` in line with the week-1` day namesat the edge oi this opening. "The central column 11 of any ofthe Zones, vcont'ains the numbers 1, 8, 15, 22,: etc., reading `froin'top to bottom, the numbers to the rightof the 'centralj col-V umn increase consecutively romsaid central column,'and the'numbers-to' the left of said central co-lumn increase consecutively toward the same. 4

Preferably the numbers in the four Zones are `printed in -dilere'nt colors or some other adequate'provision is made to effectively distinguish 'these zones lfrom each other. Vhen ,the colorscheme is used, arrows12 may be provided'near` the periphery of the exhibitor 5, visible through the opening.r 2, and the Ynames -ofcolors'may be printed adjacent these arrows'. Thus,V the operator canfsee at glance which direction the exhibitor must be turnedto reach a zone of the required color.

Alsojpositioned behind' theV faceplate 1y and preferably in the form of adisk disposed behindvthe disk 5 vis another exhibitor 13 which is divided, 'for instance, by radial lines 14 into a pluralityof 'small areas. Each of these areas, displays the name of a month, the lnumber of a year, and the name of the first weekday of said month in said year, the arrangement being such that all of the months,A fora number :of years, are rep-resented. The areas v.above referred to, designated 'in the drawings at 15,; areintended to be selectively displayedithroug'h the opening 3, and the data contained in each area co-operates with sevenf'o the columns"v11 ota predetermined zone (7, 8, 9 o-r 10) on theexhibitor 5. 'In order to readilyr indic'atew-ith what Zone, any partic-V ular area lisintended'toco-act, the several areasare distinguished from each other in the same vmanner as thef'severa-l Zones, one color being preferably used for allofthe areasfwhich cooperate wit-ha zone of that color, another color being used for all of the areas cooperable with 'another Zone, etc.

By the construction above described', the calendar may be easily Vset for any month in any year represented on the exhibitor 13. For instance, to set the calendar for March 1924s, the exhibitor 13 is turned until March 19211 appears in the opening 3." Atv the same time, the week day on which March i924- started, will be displayed at said opening, as seen in Fig. 1. The color of the particular area 15 or other desired dist-inguishing characteristic thereof will show with which zone (7, 8, 9 or 10), said particular area is adapted to co-operate. For instance, if lvlarch, 19211, Saturday ap- Y peaiing in the opening 3 are printed in black, the operator knows lat a glance that he must adjust the exhibitor 5 until the Zone Jrinted, in black, appears in the opening 2. -le also knows'that as the month started on Saturday, the number 1 of the Zone in question must be positioned under the name Saturday at the edge of the opening 2. Thus, the calendar is quickly and easily set for the desired month.

VIn most instances, I prefer as above stated, to form the exhibitors 5 and 13 in the form of disks, and these disks are'most advantageously formed of sheet metal. Sheets 16 of paper or other desired material may be secured to these disks lin any suitable manner, to display' the numerous legends and numbers above described, or in some in- Y stances, this data may be displayed directly oir one surface of the disks.

Preferably, the two disks 5 and 13are conned between the face plate 1 and a back plate 17, both of which may well be constructed of metal, and for lightness, l referto form openings 18 through all of said disks and plates. At their centers,

" the disks are formed'with bearing openings 19 receiving ya central bearing bushing 2O having reduced ends 21 received in openings 22 in the face and back plates 1 and 17. Spacing washers 23 also are preferably mounted on lthe bushing 20 between the disks and plates to prevent the printed mat ter upon the former from 'being obliterated by contact. T he peripheral portions of the plates 1 and 17 lare preferably spaced apart by sleeves 24 (see Fig. 7), screws 25 and 26 being passed through the front and back plates and threaded into said sleeves, as shown.`

For turning the two disks 5 and 13, 1 preferablyprovide their edges with gear teeth 27 meshing with flat operating gears 28 of different sizes. YOne of these gears is disposed adjacent the front plate 1 as shown most clearly in Fig. 4L, while the Vother is adjacent to the back plate 17, washers 29 being preferably interposed Vbetween said gears and plates, at one side of the former, while the other sides of said lgears contact with peripheral enlargements 31 on a pair of operating shafts 32 which pass rotatably through openings in the plates 1 and 17 and are interposed between said gears and said plates. The shafts 32 preferably have squared portions 33 received in similar openings in the gears 28 and one end or the other of said shafts may also be squared as indicated at 34, to engage suitable operating knobs 35.

By the construction just described, the calendar may be easily assembled and the parts arranged for easily rotating the disks 5 and 13, whether the knobs 35 are at the front or the rear side of the device.

If desired, the face plate 1 may carry a clock dial 36 and the shafts for operating the clock hands, may pass through the central bushing 20. When this is done, a clock mechanism is of course suitably connected with the plate 17, and a suitable glass cover (not shown) will preferably eX- tend over the entire front of the device to protect the same. Similarly, when the calendar is manufactured for use independently of a clock, it may be mounted if desired in a suitable frame having aglass front. Y

As excellent results are obtainable from the details disclosed, they are preferably followed, but within the sco-pe of the invention as claimed, numerous changes may be made.

l claim:

1. A calendar comprising a face plate having a relatively large opening and week day names along an edge thereof, said face plate also having a relatively small opening; a movable exhibitor behind the face plate. having four zones, one of said zones 'being devoted to thirty day months, the second zone being devoted to thirty-one day months, the third to the month of February with twenty-eight days, and the fourth to February with twenty-nine days; each of said zones having thirteen columns of month day numbers, any seven columns of which may be viewed simultaneously through said relatively large opening in line with said week day names, the central column of said month. day numbers containing the numbers 1, 8, .15, 22, etc., reading'from; top to bottom, the numbers ofy the columns at the right of said central column increasing consecutively from the above specified numbers while the numbers of the columns at the left of said central column increase. consecutively toward said specified numbers; and a second exhibitor having small areas adapted to be selectivelyv displayed through the small face plate opening, each of said areas displaying the `name of a month, the number of a year, and the name of the iirst week dayof said month in said year, provision being made for identifying any of said areas with the proper one of the above-named zones with which it is to co-act.

2. A calendar comprising a face plate having a relatively large substantially segmental opening and week day names along one curved edge thereof, said face plate having also a relatively small opening spaced from the center of the face plate a distance greater than said relatively large opening, a comparatively small exhibiting disk behind said face plate divided circumferentially into four Zones devoted respectively to thirty day months, thirty-one day months, February with twenty-eight days and February with twenty-nine days; each of said Zones having thirteen radial columns of month day numbers, the numbers of any zone being printed in a different color from those of the other Zones, any seven of the aforesaid columns of numbers being adapted to be viewed simultaneously through said relatively large opening of the face plate in line with said Week day names, the central Column of said month day numbers containing the numbers l, 8, l5, 22, etc., reading from the center of the disk toward the peripheral edge thereof, the numbers at one side of said central column increasing consecutively from the above specified numbers, While the numbers at the columns at the other side of said central column increase consecutively toward said specified numbers; and a relatively large exhibiting disk behind the first named disk and mounted co-aXially therewith, the portion of the large disk Which projects beyond the smaller disk being radially divided intosmall areas adapted to be selectively displayed through the small face plate opening, each of said areas displaying the name of a month, the number of a year, and the namel of the irst Week day of said month in said year, the printing displayed by any ot' said areas being in the. same color as the printing of one of the aforesaid Zones With which said area is adapted to co-act. t

In testimony whereof I have hereunto aIiXed my signature.

WILLIAM H. BAKER. 

